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Lubricating oil composition of diesel engine

A lubricating oil composition and diesel engine technology, applied in the field of lubricating oil, to achieve excellent soot dispersion performance, control anti-wear performance, and control the effect of oil viscosity growth

Active Publication Date: 2011-01-05
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In addition, Chinese patents CN1138624A, CN1181168C, CN1138621A and other patents respectively introduce the compositions of SC, SD, CC, CD, CF, etc., none of which discloses the use of hydrogenated base oil to prepare CF- 4 Lubricating oil composition required by diesel engine oil specification

Method used

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  • Lubricating oil composition of diesel engine
  • Lubricating oil composition of diesel engine
  • Lubricating oil composition of diesel engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] A full-component 10W-40CF-4 diesel engine oil was prepared, and its formula composition and the data obtained therefrom are listed in Table 1.

[0053] Table 1

[0054]

[0055]

[0056] It can be seen from Table 1 that the prepared 10W-40CF-4 diesel engine oil has passed all the engine bench tests required by CF-4 in GB11122-2006, and its performance fully meets the requirements of GB11122-2006.

Embodiment 2

[0058] A full-component 15W-40CF-4 diesel engine oil was prepared, and its formula composition and the data obtained therefrom are listed in Table 2.

[0059] Table 2

[0060]

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PUM

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Abstract

The invention relates to a lubricating oil composition of an engine, in particular to a lubricating oil composition for a heavy-load diesel engine, characterized by containing a great amount of hydrotreating base oil. The composition of the invention also contains suitable amounts of alkyl salicylates, sulfurized alkyl sulfide salts, sulphonate, macromolecular ashless dispersant, polyisobutylene-bis-succinimide ashless dispersant, zinc dialkyl dithiophosphate, phenolic antioxidant, amine-type antioxidant and sulfur-bearing antioxidant antiwear agent. The lubricating oil composition can satisfy the specification requirement of diesel engine oil CF-4, which is specified by GB11122-2006. The composition has simple prescription, low cost and convenient modulation.

Description

(1) Technical field [0001] The invention relates to an engine lubricating oil composition, in particular to a lubricating oil composition for a heavy-duty diesel engine, and belongs to the technical field of lubricating oil. (2) Background technology [0002] Environmental protection, energy saving, and extended oil change period are the main driving forces to promote the upgrading of internal combustion engine oil specifications. In order to meet the increasingly stringent environmental protection and energy saving requirements, the engine must adopt corresponding technologies to meet this requirement, and the improvement of engine technology has great impact on internal combustion engine oil. New requirements are put forward for the performance of the engine, which requires higher performance engine oil to meet the lubrication requirements of the engine. In recent years, the domestic diesel engine oil market has changed from CC and CD grade oils to CD and CF-4 grade oils. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M161/00C10M141/10C10N30/10C10N30/06C10N30/04C10N30/02C10N40/25
Inventor 汤仲平孙丁伟金鹏荆海东张勤赵正华
Owner PETROCHINA CO LTD